20115666

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{281}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 45267768

約数和(自身を除く): 25152102

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 97, 123, 194, 246, 281, 291, 369, 562, 582, 738, 843, 873, 1686, 1746, 2529, 3977, 5058, 7954, 11521, 11931, 23042, 23862, 27257, 34563, 35793, 54514, 69126, 71586, 81771, 103689, 163542, 207378, 245313, 490626, 1117537, 2235074, 3352611, 6705222, 10057833, 20115666]

約数ペア:

[(1, 20115666), (2, 10057833), (3, 6705222), (6, 3352611), (9, 2235074), (18, 1117537), (41, 490626), (82, 245313), (97, 207378), (123, 163542), (194, 103689), (246, 81771), (281, 71586), (291, 69126), (369, 54514), (562, 35793), (582, 34563), (738, 27257), (843, 23862), (873, 23042), (1686, 11931), (1746, 11521), (2529, 7954), (3977, 5058)]